Order Rodentia - Suborder Hystricognathi Author Charles A. Woods text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 771 806 book chapter http://doi.org/10.5281/zenodo.7353083 1-56098-217-9 7353083 Proechimys poliopus Osgood, 1914 . Field Mus . Nat. Hist. Pubi., Zool. Ser., 10:135 . TYPE LOCALITY: Venezuela , Tâchira State , San Juan de Colón ( 797 m ) on N slope of Sierra de Mérida . Listed in Honacki et al. (1982:590) as Venezuela , Zulia Prov. , Rio Aurare, El Panorama, for unknown reasons . DISTRIBUTION: NW Venezuela , between Lake Maracaibo and the Sierra de Perija and adjacent Colombia . COMMENTS: Subgenus Proechimys . Formerly included in cayennensis (= guyannensis) ( Reig et al., 1980 ). The chromosome no. is 2n=42; FN=76.